Monitoring and analysis of gross radioactivity of centralized drinking-water of township in Beijing
10.13491/j.issn.1004-714X.2021.05.009
- VernacularTitle:北京市乡镇级集中式饮用水总放射性监测分析
- Author:
Xiufeng MA
1
;
Yue FENG
1
;
Zhe WANG
1
;
Lu LIU
1
;
Qingyun LIU
1
;
Ruilin GAN
1
;
Zengyan GONG
1
;
Wei HUANG
1
Author Information
1. Beijing Nuclear and Radiation Safety Center, Beijing 100089 China.
- Publication Type:RadiationMonitoring/OriginalArticles
- Keywords:
Total Radioactivity;
Drinking Water of Township;
Difference of Distribution
- From:
Chinese Journal of Radiological Health
2021;30(5):568-572
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the distribution of gross α and gross β levels of centralized drinking-water of township in Beijing from 2018 to 2019, so as to carry out better monitoring and evaluating the radioactivity in water. Methods A total of 215 underground drinking water samples were collected from 12 districts of Beijing, then monitored and evaluated according to the Determination of gross alpha activity in water-thick source method EJ/T 1075—1998 and Determination of gross beta activity in water-evaporation method EJ/T 900—1994. Results The gross α level of centralized drinking water of township in Beijing was 0.050 (0.052) Bq/L, ranging from 0.001 to 0.210 Bq/L, and the gross β level was 0.048 (0.038) Bq/L, ranging from 0.002 to 0.261 Bq/L from 2018 to 2019. Gross α and gross β levels of all samples did not exceed the guidance value recommended by standards for drinking water quality. There was no significant difference in the distribution of gross α and gross β levels of samples of all districts from 2018 to 2019(P > 0.05), there were significant differences in the distribution of gross α and gross β levels of samples from different district in the same period (P < 0.05). And the levels of Miyun, Huairou and Shunyi in Chaobai River system were higher than other districts. Conclusion The distribution of radioactive background of centralized drinking-water of township in Beijing was mastered, which was in the normal range.
